题目内容
比较下面各组数的大小.
______
______
0.45______
______
______0.75
0.5______
0.65______
______
______
.
| 1 |
| 3 |
| 3 |
| 7 |
| 2 |
| 9 |
| 1 |
| 7 |
0.45______
| 27 |
| 60 |
| 5 |
| 8 |
| 7 |
| 9 |
| 2 |
| 3 |
0.5______
| 5 |
| 8 |
0.65______
| 5 |
| 6 |
| 4 |
| 7 |
| 5 |
| 9 |
| 5 |
| 6 |
| 2 |
| 3 |
(1)
=
,
=
,
所以:
<
;
(2)
=
,
,
所以:
>
;
(3)
=0.45,
所以:0.45=
;
(4)
=
,
=
,
所以:
<
;
(5)
≈0.67,
所以:
<0.75;
(6)
=0.625,
所以:0.5<
;
(7)
≈0.83,
所以:0.65<
;
(8)
=
,
=
,
所以:
<
;
(9)
=
.
所以:
>
.
故答案为:<,>,=,<,<,<,<,<,>
| 1 |
| 3 |
| 7 |
| 21 |
| 3 |
| 7 |
| 9 |
| 21 |
所以:
| 1 |
| 3 |
| 3 |
| 7 |
(2)
| 2 |
| 9 |
| 14 |
| 63 |
| 1 |
| 7 |
| 9 |
| 63 |
所以:
| 2 |
| 9 |
| 1 |
| 7 |
(3)
| 27 |
| 60 |
所以:0.45=
| 27 |
| 60 |
(4)
| 5 |
| 8 |
| 45 |
| 72 |
| 7 |
| 9 |
| 56 |
| 72 |
所以:
| 5 |
| 8 |
| 7 |
| 9 |
(5)
| 2 |
| 3 |
所以:
| 2 |
| 3 |
(6)
| 5 |
| 8 |
所以:0.5<
| 5 |
| 8 |
(7)
| 5 |
| 6 |
所以:0.65<
| 5 |
| 6 |
(8)
| 4 |
| 7 |
| 36 |
| 63 |
| 5 |
| 9 |
| 35 |
| 63 |
所以:
| 4 |
| 7 |
| 5 |
| 9 |
(9)
| 2 |
| 3 |
| 4 |
| 6 |
所以:
| 5 |
| 6 |
| 2 |
| 3 |
故答案为:<,>,=,<,<,<,<,<,>
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